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Cause and Effect Diagram This matrix is generally known as a Fishbone diagram or Ishikawa diagram. It is a visual tool which is used to analyze and display the related potential causes of a specific problem. This diagram looks like skeleton of a fish. Typically, it has structure around the main branches of the Fishbone. Which are here below. · People · Process · Equipment · Materials · Environment When we generally visually mapping out these potential causes and their relationship in diagram format. It usually identifies the main root cause of the problem. This is a great tool in problem-solving and process improvement. Cause-Effect Matrix This is generally a Six -Sigma valuable tool which is used to determine the Key Process Input Variables which are based on priorities of customer. It is also known as X-Y diagram, prioritization Matrix and Correlation Matrix. The main goal of this matrix is to mathematically compute the relationship between Key process input variable and Customer output. Prerequisite of this matrix: · Process Map · Voice of customer · Cause and effect analysis · It generally relates process steps to input and correlates to process output. · Customer requirements are ranked by order of importance and then inputs and outputs are rated by their interaction impact. · It identifies key customer requirement. · Outputs are generally given a priority scores. Inputs are rated based on the strength of their relationship with output variables as per below. 0 = No correlation 1 = Remote correlation 3 = Moderate correlation 9 = Strong correlation Few major differences between Cause -Effect Matrix & Cause and effect Diagram are here below: Cause-Effect Matrix Cause and Effect Diagram Purpose Primarily used to prioritize and quantify the potential cause of a problem Used to visually brainstorm and categorize potential causes of a problem Format It is generally a matrix or table form which lists the potential causes in rows and criteria in a column. It is a visual diagram that looks like a fish skeleton. A horizontal line representing the problem or effect and “bones” branching out to represent various categories of potential causes. Analysis Method It involves in quantitative analysis. It assigns numeric values It does not assign any numeric values. It focuses on qualitative analysis and creative thinking. Focus It supports team to make data driven decision making. This is a tool which generating ideas and promoting a better understanding about problem.